diff options
| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2010-09-26 23:27:41 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2010-09-27 01:24:15 +0200 |
| commit | 48cd65a6a020292e1ab5d0f5ba96571c858964e6 (patch) | |
| tree | 0f120d7ccadded8a2d204c9f36c846aa76991dcd | |
| parent | ARM: h1940: Use gpiolib for latch access (diff) | |
| download | linux-48cd65a6a020292e1ab5d0f5ba96571c858964e6.tar.xz linux-48cd65a6a020292e1ab5d0f5ba96571c858964e6.zip | |
ARM: h1940: Implement mmc_power function
This patch implements h1940-specific set_power callback for
s3cmci driver, so card power can be disabled when card is not inserted
or before suspend. Without this patch PDA consumes power in suspend when
card is inserted.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| -rw-r--r-- | arch/arm/mach-s3c2410/include/mach/h1940-latch.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2410/mach-h1940.c | 23 |
2 files changed, 21 insertions, 4 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/h1940-latch.h b/arch/arm/mach-s3c2410/include/mach/h1940-latch.h index 73586f20930e..ef7d8cf4174d 100644 --- a/arch/arm/mach-s3c2410/include/mach/h1940-latch.h +++ b/arch/arm/mach-s3c2410/include/mach/h1940-latch.h @@ -35,7 +35,7 @@ #define H1940_LATCH_AUDIO_POWER H1940_LATCH_GPIO(9) #define H1940_LATCH_SM803_ENABLE H1940_LATCH_GPIO(10) #define H1940_LATCH_LCD_P4 H1940_LATCH_GPIO(11) -#define H1940_LATCH_CPUQ5 H1940_LATCH_GPIO(12) +#define H1940_LATCH_SD_POWER H1940_LATCH_GPIO(12) #define H1940_LATCH_BLUETOOTH_POWER H1940_LATCH_GPIO(13) #define H1940_LATCH_LED_GREEN H1940_LATCH_GPIO(14) #define H1940_LATCH_LED_FLASH H1940_LATCH_GPIO(15) diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c index f0493bdbf0dc..cc8660ec8844 100644 --- a/arch/arm/mach-s3c2410/mach-h1940.c +++ b/arch/arm/mach-s3c2410/mach-h1940.c @@ -112,8 +112,7 @@ static unsigned int latch_state = H1940_LATCH_BIT(H1940_LATCH_LCD_P4) | H1940_LATCH_BIT(H1940_LATCH_LCD_P1) | H1940_LATCH_BIT(H1940_LATCH_LCD_P2) | H1940_LATCH_BIT(H1940_LATCH_LCD_P3) | - H1940_LATCH_BIT(H1940_LATCH_MAX1698_nSHUTDOWN) | - H1940_LATCH_BIT(H1940_LATCH_CPUQ5); + H1940_LATCH_BIT(H1940_LATCH_MAX1698_nSHUTDOWN); static void h1940_latch_control(unsigned int clear, unsigned int set) { @@ -247,10 +246,25 @@ static struct platform_device h1940_device_bluetooth = { .id = -1, }; +static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd) +{ + switch (power_mode) { + case MMC_POWER_OFF: + gpio_set_value(H1940_LATCH_SD_POWER, 0); + break; + case MMC_POWER_UP: + case MMC_POWER_ON: + gpio_set_value(H1940_LATCH_SD_POWER, 1); + break; + default: + break; + }; +} + static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = { .gpio_detect = S3C2410_GPF(5), .gpio_wprotect = S3C2410_GPH(8), - .set_power = NULL, + .set_power = h1940_set_mmc_power, .ocr_avail = MMC_VDD_32_33, }; @@ -397,6 +411,9 @@ static void __init h1940_init(void) gpio_request(H1940_LATCH_USB_DP, "USB pullup"); gpio_direction_output(H1940_LATCH_USB_DP, 0); + gpio_request(H1940_LATCH_SD_POWER, "SD power"); + gpio_direction_output(H1940_LATCH_SD_POWER, 0); + platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices)); } |